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    • 5. 发明授权
    • Router
    • 路由器
    • US07324454B2
    • 2008-01-29
    • US11014319
    • 2004-12-16
    • Yoshiaki HorinouchiHiroshi YamadaHironori OchiaiTakashi Yamamoto
    • Yoshiaki HorinouchiHiroshi YamadaHironori OchiaiTakashi Yamamoto
    • H04J1/16H04J3/14
    • H04L12/4641H04L49/354H04L49/555
    • In a router supporting a packet relay function based on a routing table, and also a VPN (Virtual Private Network) function, an output port deciding portion decides an output port different from a normal output port indicated as an output port corresponding to a destination address of a communication confirming packet based on the routing table, and packet transmitter transmits the communication confirming packet through the decided output port. A communication confirming packet determining portion determines a communicating state based on a response packet for the communication confirming packet received from the destination router of the communication confirming packet returned from another router connected to the output port and relayed by its own router.
    • 在支持基于路由表的分组中继功能的路由器以及VPN(虚拟专用网络)功能中,输出端口决定部决定与指定为对应于目的地地址的输出端口的通常输出端口不同的输出端口 基于路由表的通信确认包,并且分组发送器通过所确定的输出端口发送通信确认分组。 通信确认分组确定部分基于从目的地路由器接收到的通信确认分组的响应分组确定通信状态,该通信确认分组从连接到输出端口的另一路由器返回并由其自己的路由器中继的通信确认分组返回。